Jar-closure.



M. DORN.

JAR CLOSURE. APPLICATION FILED. mm;- 1. 1916.

1 $61,782 Patehted Apr. 9,1918.

(inventor lo l masses J WTED STATE PATENT @FFTCE.

MILTON DORN, OF TELFOBD, PENNSYLVANIA.

JAB-CLOSURE.

To all whom it may concern Be it known that I, MILTQN Dorm, a citizen ofthe United States, residing at Telford, in the county of Montgomery,State of Pennsylvania, have invented a new and useful Jar-Closure; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to the art of jars and closures therefor. andmore especially to an opening including a closure for the jar closure.

One of the objects of the invention is to provide a simple, improved,essential and practical closure for an opening. particularly adapted forpreventing breaking of the vacuum in a jar, such as those that are usedfor the preservation of various food products, such as preserves orfruits, certain vegetables and the like.

Another object of the invention is the provision of an opening having asurrounding flange or raised portion, which is engaged by a rubber diskor the like, in combination with a transverse wire clamp. the side wirearms ofwhich engage the rubber disk or the like so as to hold the samedown on both sides of the raised portion or flange, thereby preventingthe exterior atmosphere from entering the opening, which would break thevacuum.

In practical fields the details of construction may necessitatealterations falling within the scope of what is claimed.

The invention comprises further features and combination of parts ashereinafter set forth shown in the drawings and claimed.

In the drawings Figure 1 is a view in perspective of the improvedclosure for the opening of a preserving iar closure, constructed inaccordance with the invention.

Fig. 2 is a sectional view on line 2-2 of Fig. 1.

Fig. 3 is a sectional view on line 3-3 of Fig. 1 at right angles to Fig.2.

Fig. 4 is a detail view of the closure detached.

Referring more especially to the drawings 1 designates a portion of apreserving jar, and 2 the usual jar closure, which is provided with theusual glass plate adjacent the under surface of the top of said closure.In-

Specification of Letters Patent.

Patented Apr. 9, 1918.

Application filed June 1, 1916. Serial No. 101,069.

of the bushing passes through the metal wall of the jar closure, andthrough an opening 8 of the glass plate 9. The side of the jar closureis provided with a short socket 10, into the ends of which, the bentends 11 of the sides 12 of the wire clamp 13 pivotally engage. This wireclamp is constructed from a single length of wire bent upon itself asshown at 14, thereby forming the two sides. Where the single length ofwire is bent upon itself, a loop is formed, which in itself is bent, toprovide a hook, which engages the metal jar closure at a pointdiametrically opposite where the clamp is hinged. As will be noted thesides of the wire clamp are bowed downwardly correspondingly and are sospaced relative to each other as to partially engage down upon adjacentopposite sides of the flange about the opening, so as to hold a rubbergasket or disk 16 snugly in engagement with said flange, therebypreventing the exterior atmosphere from entering the opening andbreaking the vacuum in the jar. This rubber gasket or disk 16 atdiagrammatically opposite points is provided with incisions or slots 17,through which the clamp passes in the manner shown in the drawing. Theslots or-incisions 17, particularly one of them, through which the sides12 of the clamp passes act to hold the bent ends 11 of the sides 12 inthe socket 10 of the jar closure, thereby preventing disconnection ofthe clamp. The bowing or bending of the sides of the clampdownwardlyacts as yieldable means, to insure pressure upon the rubber gasket ordisk.

It will be seen that this invention greatly facilitates the opening ofjars, which is often times a ditficult matter.

The vent and closure clamp and disk being so constructed that when it isdesired to open the jar the rubber disk can be easily removed from thevent thus admitting the outside air into the jar; this breaks the vacuumand so reduces the pressure of the cap on the rubber ring and thus makesit much easier to unscrew or remove cap from. the jar.

The ihifeiitien"hayihgbeeh fset forth what is claimed as new and usefulis d In combination with a jar closure having a central flangedventan'dprovided on its; side with a bulge concentric with the closure,

said bulge having an opening, a clamp-(2015 sisting of a single piece ofyieldable wire between-dismissfor-we' e loop-"at ene end I Ventandcarried by 'theclamp whereby the about all p'oiiits of thesis-gum "edgbfsaid flange, said gasket having diametrically oppe'sitely'adisposed-slits through which the clamp passes, whereby the arms of theclamp areprevented from spreading and their lateral parts disengagingthe opening of the bulge.

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